TPS7A4101DGNR

Current - Output:	50mA
Base Part Number:	TPS7A4101
Supplier Device Package:	8-MSOP-PowerPad
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	65dB (100Hz)
Current - Quiescent (Iq):	65µA
Series:	--
Voltage Dropout (Max):	1.3V @ 50mA
Voltage - Output (Max):	48V
Voltage - Output (Min/Fixed):	1.175V
Voltage - Input (Max):	50V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The TPS7A4101DGNR is a linear voltage regulator with a wide range of applications due to its versatility and high efficiency. It is capable of supplying up to 400mA output current with a 5V input voltage and can regulate output voltage from 1V to 5.5V. With its high efficiency and wide input voltage range (from 4.5V to 30V), it is ideal for powering low voltage, high current loads, such as microprocessors and digital signal processors, in a wide array of applications. The regulator also features a low-noise, fast transient response, short circuit protection, and thermal shutdown protection, making it a safe and reliable power solution for any application.

Application Field

The TPS7A4101DGNR is suitable for a wide variety of designs, particularly those that require a relatively low output voltage and high current capacity. Such applications include computing, consumer electronics, communications, automotive, medical, industrial, and many others.In computing applications, the TPS7A4101DGNR may be used to regulate the supply voltage of the processor, which is often one of the most power hungry components in the system. The wide input voltage range and high efficiency of the regulator make it ideal for use in small, low power computing systems, such as notebooks, netbooks, tablets, and embedded systems.In consumer electronics, the TPS7A4101DGNR can be used to provide a stable supply of up to 5V to the circuit, which is often necessary to operate a wide array of components. Examples include powering monitors, LCD displays, televisions, set-top boxes, Blu-ray players, game consoles, and other electronics.In communications applications, the TPS7A4101DGNR may be used to provide a stable source of power to modems, routers, antennas, and other RF electronics.In automotive applications, the TPS7A4101DGNR may be used to provide a stable supply of up to 5V to power components such as navigation units, sensors, infotainment systems, and other automotive electronics.In medical and industrial applications, the TPS7A4101DGNR may be used to provide a stable source of power to medical and industrial equipment, such as handheld medical scanners, process monitoring systems, laboratory analyzers, and other high current, low voltage applications.

Working Principle

The TPS7A4101DGNR is a linear voltage regulator which uses an internal reference voltage, a series pass transistor, an error amplifier and voltage divider resistors to regulate the output voltage. The error amplifier monitors the input voltage and output voltage and adjusts the series pass transistor accordingly so that the output voltage is maintained at the desired level. When connected to a power supply, the TPS7A4101DGNR draws in a small amount of current which is used to establish the reference voltage. When a load is connected to the regulator, the error amplifier monitors the difference between the input voltage and the output voltage, and adjusts the series pass transistor accordingly. This adjustment is made in order to maintain the desired output voltage, regardless of changes in the load or the input voltage. The output voltage is monitored by the voltage divider resistors and is adjustable by varying the resistors. The TPS7A4101DGNR also features several protection circuits such as thermal shutdown, short circuit protection, and reverse current protection. The thermal shutdown circuit will shut off the power if the internal circuitry exceeds a certain temperature, while the short circuit protection circuit ensures that no damage is done to the IC if a short circuit is present at the output. The reverse current protection circuit ensures that no current can flow from the output of the IC back to the input, allowing the regulator to remain safe even if the power supply is connected backwards.

Conclusion

The TPS7A4101DGNR is an extremely versatile and efficient linear voltage regulator, capable of supplying up to 400mA of current with a wide input voltage range and adjustable output voltage. Its high efficiency and protection circuits make it an ideal choice for powering low voltage, high current loads, such as microprocessors and digital signal processors, in a wide array of applications, from computing and consumer electronics, to communications, automotive, medical, and industrial.

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